Method of making concrete piles.



PATENTED MAE. 8, 1904.

W. C. LYON. METHOD OE MAKING CONCRETE PILES APPLICATION FILED SEPT. 3,1902.

N0 MODEL.

No. 754,375. p

UNTTBD STATES Petentedmereh s, 1904.A

PATENT Ormea] METHOD OF MAKING CONCRET PILES.

srEcIFrcn'rIoN refining part ef Letters Patent No. 754,375, dated Merene, 1904.

Applicationilei': September i?,

VBe it known that LVVALLACE (l. LYON, acitizen of the United States,residing at Hyattsville, in the county of Prince (eorge and State of)'Iaigvland, have invented certain new and useful lmpriwements inll/lethods of Making Concrete Piles; and I do declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same, reference being had to thel accompan ying drawings, and to theletters of reference marked thereon, which form a part of thisspecification. l

This invention relates to a novel method of making concrete piles; andit consists, first, in the formation of a hole in the earth having thedimensions of the pile to be constructed and of forming the pile byforcing in the coucrete material simultaneously with the withdrawal ofthe former, which has been previously driven into the ground to make thehole for the pile, by which method the pile may be built up, followingthe former as it is being withdrawn, the concrete being forced out 4ofthe bottom of the former and against the wall of the hole in the ground,thereby preventing the caving in of the hole.

n the production of piles in accordance with my method-it will bereadily understood that the pressure exerted upon the mass of concrete,which is placed within the former which is driven into the ground, willbe sufficient after overcoming the frictional contact between the outerc1rcumference of the former and the wall of the hole to cause theconcreteto rise up about the circumference of the lower portion of saidformer and to quickly fill up the hole as the former is withdrawn.

In the accompanying drawings l have illustrated an apparatus whereby thevarious steps of my method may be carried out, and in which- Figure lisa vertical central longitudinal sectional view through a tapering hollowformer which is utilized to make a hole in the ground of a size desiredtomold the pile. Fig. 2 is a sectional View through the ground', showingthe formation of the pile. Fig. 3 is a sectional 1902. Serial No.121,988. (No specimens.)

View in detail through the upper portion of the former.

Reference now being had to the detailsof the drawings by letter, Adesignates a former of tapering form having vits lower end open and aflange A at its upper end, to which a flanged top B is bolted orotherwise secured.

Said top has a flattened portion C, whichis centrally apertured, as atC', the wall of which aperture is adapted to form avseat for the valvel), pivotally mounted on an armE, that is in turn pivotally mountedion apin F, car'- ried by a lug on the inner wall of said top. ln order tomake an air-tight Joint between said valve and its seat, a gasket{1,'F1g1 3,15

interposed between the valveand its seat, as

shown. Passing through an aperture in Said valve is a pipehavingthrezuled circumference fitting threads formed in the wall of saidaperture, and to the upper end of said pipe, which has threads aboutYits circumference above a flanged portion thereof, a hose-pipe isadapted to be attached, through which any fluid may bo forced fo produee a pressure upon the concrete which hasbeen previously placed withinthe former. Said concrete should be of such a consistency as to readilypass out of W the lower end of the former as the latter is raised outlof the Ahole in the ground'and as pressure is applied to fhe surface ofsaid concrete.

l( designates a buffer,- which rest upon the flattened portion of thetop of the casing and provided for the purpose of receiving' the blowfrom the driving-hammer- Previous to the commencement of the formationof the hole. in the ground apointed shoe N, haring a shouldered portion,is placed iu the lower end of the casing in the manner illustrated inFig. lof l,the draw-ings, the outer circumference of saidiforinerbeingflush with the outer circumference of said tip in order is adaptedVto that'therewill be no uneven surfaces onl the? and the top ot theformer sufficient to overcome the friction existing between the outercircumference ot the former andthe wall ot' the hole formed in theground, and when fur- `5 ther pressure is thus applied the former willbe forced up simultaneously with the forcing 'out ot' thc concretematerial at .the lower end 'of the former.l It will be understood thatas f' said former is forced up the shoe will remain at the bottom of thehole, it being securely anchored therein by the concrete which fills thehollow portion thereofand also which sets firmly about the shoulderedportion of the slice. I5 Having. thus described my invention, what Iclaim to be new, and desire to secure by Letters Patent, is-I- Vl. Amethod of making concrete piles, consisting in forming a holdin theground by 2O means of a former, of filling the former with concrete,hermetically sealing. the saine and applying' a pressure between thesurface ot' the concrete and the top ot' the former; w;hereby the latterwill be raised out of the ground and the concrete forced through thelower end of the former to replace the space occu- Lpied by the former,as set forth.

2. A method of making concrete piles. consisting' in making a hole inthe ground by a suitable former and filling the latter with aserniliquid concrete and hermetically sealing the former and applyingpressure between the surface of the concrete andthe top of the `former,whereby the concrete will be forced through the lower end of' the formersimul taneously with the raising of the laitter, whereby the spaceoccupied by the former may be replaced by the concrete and preventingthe caving in oi the wall ot' the hole, as set t'orth. 40 3. ',lhcmethod ot' making concrete piles which consists in preparing a permanentbase or foundation for the pile, introducing the saine into the groundto the proper depth, and forming an opening above said base by thc actot' introducing the saine, then iilling Said opening with concrete orotliei plastic material and permitting the concrete to set,substantially as described.

4. A method of inakingeoncrctepiles which consists in preparing apermanent base or foundation for the pile, driving the saine into theground to the proper depth by'ineans ot' a pile oi former and therebymaking an opening in the U'roiind above said base, then filling'signature in presence of two witnesses.

said opening with concrete or other plastic material and permitting theconcrete to set, substantially as specified. l

Amethod ot'makingconcrcte piles which consists in preparing a permanentbase or foundation for the pile, driving the saine into the ground tothe proper depth by means of a hollow pile, or former and thereby makingan opening in the ground above said base, then filling said opening withconcrete or other plastic material introduced thereinto through thehollow pile, and permitting saidconcrete to set, substantiallyspecified.

(5.. A method of making concrete piles, the same consisting in providinga hollow pile or former with a detachable point or shoe, driving saidpile to displace the earth, withdrawing the pile without the shoe andfilling the opening'above said shoe with concrete oi other plasticmaterial and permitting the same to set, substantially as specified.

7. A method of niakingeoncrete piles which consists in providing ahollow pile or former with a detachable point or slice, driving saidpile to displace the earth, withdrawing the pile, without the shoe, and,as said pile is withdrawn, delivering the concrete or other plasticmaterial from its lower end into the opening formed by such withd awalof thc pile, substantially as specified.

8. A method ot' making concrete piles which consists in providing ahollow pile or former with a detachable point or shoe, driving said pileto'displace the earth, introducing concrete into the hollow pile,withdrawing `the pile without the shoe, and, said pilc'is withdrawn,applying pressure to the mass of concrete therein so as to force saidconcrete from the lower end -ot' the pile. into the opening formed bythe withdrawal ot' the pile, substantially as specified.

9. A method of mahingeoncretc piles which consists in providing a hollowpileI or former with a detachable shoe or point, driving said piletodisplace the earth, 1ntroducingeonerete into the hollow pile, closingthe top ot' the pile and then introducing Huid-pressure. into the spacebetweenthe top of the mass of concrete and thc closed top of' the pile,whereby the latter is forced out ot' the. opening, leaving the shoetherein, and the concrete is forced from the lower end of the pile. intothe opening above said shoe, substantially as specified.

1f). A inethodot' making concrete piles consisting in introducing a tubeinto the ground, introducing concrete into the tube, hermeticallysealing the tube and applying fluid-pres sure, between the surface ofthe concrete and the closure of' the tube.. i. i

In testimony whereofl l Iiereiinto aflix iny WALLACE LYON.

ll'itiiesses:

A. L. flocon, 1 N. A. Miiriinw.

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